something growing on light

[hurdledude1298]

I have something yellow /brownish and hard growin on my aquarium light bulb. does anyone know what it is?

[FishKeeper-16]

When bubles in your aquarium burst, they can leave mineral deposits and thats what it may be and try using a razer blade to remove it.

[hurdledude1298]

ok thanks

[Malachite]

Sounds very similar to the question I posed about mineral deposits on my glass covers. I was told vinegar is also good for loosening or disolving those deposits. Should make the scraping easier.

http://www.aquariacentral.com/forums/showthread.php?t=43149